These release notes have been generated from the commit log of the 4.0 stream and the associated bugzillas.
The first commit is 2e45c51345cf6fe71b4fe4417d3f4a163d466fb8 in the master branch.
The last commit is 1837d87cc1f72263d0ab4223ab6c96b455936028 in the streams/4.0-maintenance branch.
The previous build of the 4.0 stream is R20110608-1407.